{"title":"$q$-Quermassintegral forms of the $L_p$-Busemann–Petty centroid inequality","authors":"Hui Xue, Weidong Wang","doi":"10.4064/ap221124-29-5","DOIUrl":"https://doi.org/10.4064/ap221124-29-5","url":null,"abstract":"Lutwak, Yang and Zhang established the $L_p$-Busemann–Petty centroid inequality. We establish the $q$-quermassintegral forms of the $L_p$-Busemann–Petty centroid inequality for convex bodies. As special cases, we obtain the quermassintegral and harmonic q","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136203681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nathaphon Boonnam, Rattanasak Hama, Sorin V. Sabau
{"title":"The geometry of Randers cylinders of revolution with non-constant navigation data along meridians","authors":"Nathaphon Boonnam, Rattanasak Hama, Sorin V. Sabau","doi":"10.4064/ap221017-13-8","DOIUrl":"https://doi.org/10.4064/ap221017-13-8","url":null,"abstract":"We study the structure of cut loci of a Finsler metric of Randers type defined on a cylindrical surface of revolution. Our Randers metrics are obtained by perturbing the Riemannian metric with a closed one-form, which is equivalent to the solution of Zerm","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135704400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Existence and stability results for a class of nonlocal semilinear equations involving delays","authors":"Nguyễn Như Quân","doi":"10.4064/ap220912-5-4","DOIUrl":"https://doi.org/10.4064/ap220912-5-4","url":null,"abstract":". We investigate the existence and weak stability of mild solutions for a class of nonlocal semilinear equations involving finite delays. Based on local estimates and fixed point arguments, we prove the global existence of mild solutions to problems in which the nonlinearity is superlinear or sublinear without the smallness condition on initial data or on the coefficients. Then by using a special measure of noncompactness, we show some sufficient conditions ensuring the weak stability of mild solutions.","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70585686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A result related to the Sendov conjecture","authors":"Robert Dalmasso","doi":"10.4064/ap221118-1-6","DOIUrl":"https://doi.org/10.4064/ap221118-1-6","url":null,"abstract":"The Sendov conjecture asserts that if $p(z) = prod_{j=1}^{N}(z-z_j)$ is a polynomial with zeros $|z_j| leq 1$, then each disk $|z-z_j| leq 1$ contains a zero of $p'$. Our purpose is the following: Given a zero $z_j$ of order $n geq 2$, determine whether there exists $zeta not= z_j$ such that $p'(zeta) = 0$ and $|z_j - zeta| leq 1$. In this paper we present some partial results on the problem.","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135400028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Number of triple points on complete intersection Calabi–Yau threefolds","authors":"Kacper Grzelakowski","doi":"10.4064/ap230213-20-8","DOIUrl":"https://doi.org/10.4064/ap230213-20-8","url":null,"abstract":"We discuss bounds for the number of ordinary triple points on complete intersection Calabi–Yau threefolds in projective spaces and for Calabi–Yau threefolds in weighted projective spaces. In particular, we show that in $mathbb {P}^5$ the intersection of","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136209315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Restricted log-exp-analytic power functions","authors":"Andre Opris","doi":"10.4064/ap221218-2-6","DOIUrl":"https://doi.org/10.4064/ap221218-2-6","url":null,"abstract":"A preparation theorem for compositions of restricted log-exp-analytic functions and power functions of the form $$h: mathbb{R} to mathbb{R}, x mapsto left{begin{array}{ll} x^r,&x>0, 0,&textnormal{ else, } end{array}right.$$ for $r in mathbb{R}$ is given. Consequently we obtain a parametric version of Tamm's theorem for this class of functions which is indeed a full generalisation of the parametric version of Tamm's theorem for $mathbb{R}_{textnormal{an}}^{mathbb{R}}$-definable functions.","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43986513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Weighted Green functions for complex Hessian operators","authors":"Hadhami Elaini, A. Zeriahi","doi":"10.4064/ap220509-27-10","DOIUrl":"https://doi.org/10.4064/ap220509-27-10","url":null,"abstract":"Let $1leq mleq n$ be two fixed integers. Let $Omega Subset mathbb C^n$ be a bounded $m$-hyperconvex domain and $mathcal A subset Omega times ]0,+ infty[$ a finite set of weighted poles. We define and study properties of the $m$-subharmonic Green function of $Omega$ with prescribed behaviour near the weighted set $A$. In particular we prove uniform continuity of the exponential Green function in both variables $(z,mathcal A)$ in the metric space $bar Omega times mathcal F$, where $mathcal F$ is a suitable family of sets of weighted poles in $Omega times ]0,+ infty[$ endowed with the Hausdorff distance. Moreover we give a precise estimates on its modulus of continuity. Our results generalize and improve previous results concerning the pluricomplex Green function du to P. Lelong.","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48693816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Viscosity solutions to\u0000parabolic complex Hessian type equations","authors":"H. Do","doi":"10.4064/ap220130-7-9","DOIUrl":"https://doi.org/10.4064/ap220130-7-9","url":null,"abstract":"In this paper, we show the existence and uniqueness of viscosity solution to the Cauchy-Dirichlet problem for a class of fully nonlinear parabolic equations. This extends recent results of Eyssidieux-Guedj-Zeriahi in [7].","PeriodicalId":55513,"journal":{"name":"Annales Polonici Mathematici","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70585305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}